TBF I think there are quite a few men who would like to be pregnant, give birth, breastfeed.
They know it's not their thing though, because biologiy, and it doesn't make them women.
Male driven science tampering in matters relating to pregnancy, birth and feeding has freqeuntly been an unmitigated disaster, the misogyny inherent underplays the role of the women. Babies in bags? Yes why not, a womb is just a bag, the small matter of it being an integral part of the woman's body, and the baby being completely integrated into all her other functions, being able to hear her, feel her heartbeat, that's irrelevant. Formula milk? Well science is awesome and women are a bit rubbish, clearly the men in white coats will easily be able to create something superior, it's just milk after all. And look how that ended up.
As I say I think a lot of it is a desire - subconscious usually - from men, to remove women from this process. Because they need us now, and they don't like it. Womb envy. Is a thing. The idea of penis envy was a standard patriarchal reversal.